syncflush error

[paulcarrm9mx]

Hi i get an error as below when ever i try and zoom in on rstp stream camera please see error below can you help please. thanks Paul

"<?xml version="1.0" encoding="UTF-8"?>
-<ExceptionLog>
<TimeStamp>2018-01-19T20:32:51.5947913Z</TimeStamp>
-<Exception>
<ExceptionType>System.Runtime.InteropServices.COMException</ExceptionType>
<Message>Exception from HRESULT: 0x88980406</Message>
<Source>PresentationCore</Source>
<StackTrace> at System.Windows.Media.Composition.DUCE.Channel.SyncFlush() at System.Windows.Interop.HwndTarget.UpdateWindowSettings(Boolean enableRenderTarget, Nullable`1 channelSet) at System.Windows.Interop.HwndTarget.HandleMessage(WindowMessage msg, IntPtr wparam, IntPtr lparam) at System.Windows.Interop.HwndSource.HwndTargetFilterMessage(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled) at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o) at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs) at System.Windows.Threading.ExceptionWrapper.TryCatchWhen(Object source, Delegate callback, Object args, Int32 numArgs, Delegate catchHandler)</StackTrace>
</Exception>
-<PluginInformation>
<Plugin LicensesOK="False" File="VideoOS.RemoteClient.Plugin.GisMap.dll" Type="VideoOS.RemoteClient.Plugin.GisMap.GisMapContentType"/>
<Plugin LicensesOK="True" File="VideoOS.RemoteClient.Plugin.TextViewItem.dll" Type="VideoOS.RemoteClient.Plugin.TextViewItem.TextContentType"/>
<PlatformPlugin File="VideoOS.EventServer.AlarmPlugin.SmartClient.dll" Type="VideoOS.EventServer.AlarmPlugin.SmartClient.AlarmPluginDefinition"/>
<PlatformPlugin File="VideoOS.Transact.ClientPlugin.dll" Type="VideoOS.Transact.ClientPlugin.TransactClientPluginDefinition"/>
</PluginInformation>
</ExceptionLog>"